How To Fix KT154 - Hierearchy & already contains single values

SAP Error Message - Details

• Message type: E = Error

• Message class: KT - RK Message Table Maintenance

• Message number: 154

• Message text: Hierearchy & already contains single values

What causes this issue?

You entered an invalid hierarchy:
INCLUDE RKS_0001 OBJECT DOKU ID TX LANGUAGE EN

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a valid hierarchy.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KT154 - Hierearchy & already contains single values ?

  The SAP error message KT154, which states "Hierarchy & already contains single values," typically occurs in the context of SAP Controlling (CO) when you are trying to assign or manipulate a hierarchy that already has single values assigned to it. This can happen in various scenarios, such as when working with cost centers, profit centers, or other hierarchical structures in SAP.
  Cause:
  The error is triggered when you attempt to add a new node or value to a hierarchy that already contains individual values. SAP does not allow the addition of a new hierarchy node if the existing hierarchy already has single values assigned to it. This is to maintain the integrity of the hierarchy structure.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Hierarchy Structure: Review the existing hierarchy to see if it already contains single values. You can do this by navigating to the relevant hierarchy in the SAP system.
  
  
  Remove Single Values: If you need to add a new node to the hierarchy, you may need to remove the existing single values first. This can be done by:
  
  Going to the hierarchy maintenance transaction (e.g., KSH1 for cost center hierarchy).
  Identifying and removing the single values that are causing the conflict.
  
  
  
  Create a New Hierarchy: If the existing hierarchy is critical and cannot be modified, consider creating a new hierarchy that does not contain the conflicting single values.
  
  
  Consult Documentation: Refer to SAP documentation or help files for specific instructions related to the hierarchy you are working with, as the steps may vary depending on the context (e.g., cost centers, profit centers).
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to make changes to the hierarchy. Lack of proper permissions can sometimes lead to errors.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KSH1 (Create Cost Center Hierarchy), KSH2 (Change Cost Center Hierarchy), and KSH3 (Display Cost Center Hierarchy).
  SAP Notes: Search for SAP Notes related to error KT154 for any specific fixes or updates provided by SAP.
  Hierarchy Management: Understanding how hierarchies work in SAP CO can help prevent similar issues in the future. Consider training or resources on hierarchy management within SAP.
  
  By following these steps, you should be able to resolve the KT154 error and successfully manage your hierarchy in SAP.